Benign Skin Lesions Flashcards
Identify this lesion
seborrheic keratosis
What is the most common benign cutaneous lesion?
seborrheic keratosis
Characteristics of a seborrheic keratosis
- smooth, verrucous, stuck-on appearance
- arise from epidermis
- milia like cysts on the surface
- can vary in color and have irregular borders
Identify these two similar lesions
left: seborrheic keratosis
right: malignant melanoma
What is the treatment for seborrheic keratosis
- watchful waiting
- cryotherapy, currettage, shave biopsy
Characteristics of dermatosis papulosa nigra
- similar to SKs
- multiple brown/black dome shaped papules
Identify this lesion
dermatosis papulosa nigra
What is the treatment for dermatosis papulosa nigra
- monitor
- Refer to derm for: curettage, cryotherapy
Identify this lesion
actinic keratosis
characteristics of actinic keratoses
- rough scaly patch develops from years of sun exposure
- can become SCC
treatment for AKs
- biopsy if uncertain diagnosis
- cryotherapy, curettage
- imiquod or fluorouracil
- sun protection
Identify these lesions
solar lentigines (singular: solar lentigo)
characteristics of solar lentigines
- aka liver spots
- small sharply circumscribed pigmented macule
- hyperplasia of the epidermis causing increased pigmentation of basal layer
treatment for solar lentigines
refer to derm for laser or chemical peels
What makes freckles unique to solar lentigines
Freckles
- appear during childhood
- darken with sun exposure
- fade with less sun
- genetic
characteristics of cutaneous horns
- hard keratin projection
- occur in sun exposed areas
- can be benign or pre-malignant
Identify this lesion
cutaneous horn
Treatment for cutaneous horns
biopsy due to a concern for SCC at the base of the lesion
What is the common name for acrochordons
skin tags
Acrochordons characteristics
- skin colored pedunculated papules ranging in size from tiny to 1cm
- fleshy texture
- common in areas of friction